FEP Films
FEP films offer excellent chemical resistance and release properties. FEP films also have a low dielectric constant and dissipation with a continuous use temperature of 400°F (205°C), suitable for use in cryogenic and high temperature applications.
We offer four different options for FEP film:
- CHEMFILM® FEP-FG General Purpose Film
- CHEMFILM® FEP-FS and ETFE-LM Low Melting Film
- CHEMFILM® FEP-RF Release Film
- CHEMFILM® FEP-WF Welding Film
| Material | Use Temperature | Tensile Strength | Elongation | Modulus | Tear Resistance | Density | Coeff. of Friction | Chemical Resistance | Abrasion Resistance | Light Transparency |
|---|---|---|---|---|---|---|---|---|---|---|
| PFA | 260°C | Good | Good | Good | Good | High | Best | Best | Good | Best |
| FEP | 205°C | Good | Good | Good | Good | High | Best | Best | Good | Best |
| ECTFE | 170°C | Best | Better | Best | Better | Lowest | Better | Better | Best | Good |
| ETFE | 165°C | Better | Good | Better | Better | Lower | Better | Good | Better | Best |
Products
FEP-FG General Purpose
CHEMFILM FEP-FG, general purpose film, is manufactured from fluoroinated ethylene propylene resin. This film grade provides a low dielectric constant and excellent dissipation over a wide range of temperatures, from -425°F to 400°F (-254°C to 205°C), and frequencies for low signal distortion and attenuation in flexible printed circuit and flat cable applications.
BENEFITS:
- Outstanding anti-stick release properties
- Superior dielectric and electrical insulation properties
- Exceptional chemical resistance in aggressive environments
- UV stable: long term performance in outdoor applications
- Available with pigment for easy identification
- Available with C-treatment to provide a cementable surface on one or both sides of the film
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FEP-FS High Molecular Weight Film
CHEMFILM FEP FS film is made from high molecular weight fluorinated ethylene propylene resin for applications where high flex life and stress-crack-resistant performance are required, such as tank linings and diaphragms. Its temperature performance
BENEFITS:
- High molecular weight resin offers excellent stress crack resistance and flex life
- Outstanding anti-stick release properties
- Superior dielectric and electrical insulation properties
- Exceptional chemical resistance in aggressive environments
- Available with pigment for easy identification
- Available with C-treatment to provide a cementable surface on one or both sides of the film
RELATED DOCUMENTS:
FEP-RF Release Film
CHEMFILM FEP-RF, release film, is a clear or pigmented film manufactured from fluorinated ethylene propylene resin. FEP-RF is specifically desired for release applications. The non-stick surface, chemical resistance, and 400°F (205°C) usage temperature make it an ideal release film for composite molding over a wide range of resin systems.
BENEFITS:
- Easy de-molding prevents damage and contamination of parts and the mold
- Temperatures suitable for high temperature resin systems in composite molding
- Exceptional chemical resistance in aggressive environments
- UV stable: long term performance in outdoor applications
- Available with pigment for easy identification
- Available with C-treatment that allows the film to be sealed easily to itself and other surfaces
RELATED DOCUMENTS:
FEP-WF Welding Film
FEP-WF welding film is an ideal economical solution for applications that don’t require high aesthetic standards, such as hot melt adhesives (welding tape). FEP-WF film has an operating temperature range of -425°F to 400°F (-254°C to 205°C) and possesses all of the physical, mechanical, and thermal properties of FEP-FG grade, while offering up to 25% savings.
BENEFITS:
- Suitable for extreme indoor and outdoor sealing and welding use
- Superior dielectric and electrical insulation properties
- Exceptional chemical resistance in aggressive environments
- UV stable: long term performance in outdoor applications
- Available with pigment for easy identification
- Available with C-treatment to provide a cementable surface on one or both sides of the film
RELATED DOCUMENTS:
